total memory available is only 3.3GB with 4GB physical memory under windows 7 64 bit

Discussion in 'Windows Vista Talk' started by someone, May 16, 2010.

  1. someone

    someone Guest

    I had 4GB physical memoryon the PC. With Windows vista 32 bit,
    available memory is shown as 3.3GB. I asked on usenet and was told
    that only under 64 bit windows, will the available memory be 4GB.

    When I upgraded to windows 7, I chosed 64 bit (I did clean install of
    course), but the available memory shown in the system is still 3.3 GB.
    This is show in both task manager under performance->Physical
    memory->total, and 'property of My Computer'->Installed memory
    (4GB/3.3 GB usable)

    Why is this and is there a way to make the full 4GB available?

    It's possible that my video card is using RAM instead of its own video
    RAM. This video card may not have its own memory.

    Now I just replaced a new video card with 512 MB of its own memory,
    the memory available becomes 2.8GB. Again, this is shown in both
    task manager under performance->Physical memory->total, and 'property
    of My Computer'->Installed memory (4GB/2.8 GB usable).

    The PC is Dell Inpirson 530. The only BIOS setting applicable to this
    DVMT Mode: FIXED, DVMT (DVMT by default)
    DVMT/FIXED Memory Size: 128 MB, 256 MB, MAX (128 MB by default)

    Looked up DVMT on the web, doesn't seem change the setting will help.

    someone, May 16, 2010
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  2. someone

    ray Guest

    That's not quite true. Certain server editions of 32 bit MS systems and
    Linux 32 bit systems can address up to 64gb via PAE - assuming the
    hardware cooperates.
    ray, May 16, 2010
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  3. someone

    Peter Foldes Guest

    As Charlie posted. This has to do with the setting in your Bios. If your Bios is old
    and it does not have that setting for you to change then either find the Update for
    your Bios or if not available change to an Updated one


    Please Reply to Newsgroup for the benefit of others
    Requests for assistance by email can not and will not be acknowledged.
    Peter Foldes, May 16, 2010
  4. someone

    Drew Guest

    First off are you absolutely sure you are running 64bit??
    Drew, May 17, 2010
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